PAH8011ES Product Datasheet
Low Power Heart Rate Monitor Optical Chip
PixArt Imaging Inc.
4.3 Reference Schematic
AGND
VDDM
VDDLED
C7
0.1uF
D1
R1
0
VDD_LED
LED0
IR LED0(0603)
D2
AGND
LEDGND
C1
C2
LED1
0.1uF
10uF
C8
Green LED1(0603)
0.1uF
C5
C6
VDD18V
D3
0.1uF
10uF
LED2
Green LED2(0603)
R2
R3
0
0
PAH8011ES-IN
Host interface:
3.1 - 3.6V (VDDM)
3.3 - 4.5V (VDDLED)
1.7 - 1.9V (VDD18V)
VDDIO (1.8 - 3.3V)
GND
16
15
7
8
VDDD
VSSD
VDDAY
VSSA
VDDD
VSSD
VDDAY
VSSA
I2C_SCL
C3
C4
C9
0.1uF
I2C_SDA
INT1
INT2
0.1uF
10uF
C10
0.1uF
POWERDN
DGND
DGND
AGND
AGND
Layout note:
1. C7, C8, C9, C10 Capacitor close to package
2. AGND, DGND, LEDGND separate and
connect to PCB main ground
PAH8011ES-IN Sensor Only
Figure 7. Reference Application Circuit
Version 1.1 | 20 Oct 2017 | 31008AEN
PixArt Imaging Inc. http://www.pixart.com
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PIXART [ PIXART IMAGING INC. ]
